<template>
  <div id="root">
    <div class="todo-container">
      <div class="todo-wrap">
        <myHeader :receive="receive" />
        <!-- 把一个方法传给myHeader -->
        <myList
          :todos="todos"
          :checkTodo="checkTodo"
          :deleteTodo="deleteTodo"
        />
        <myFooter
          :todos="todos"
          :checkAllTodo="checkAllTodo"
          :clearAllTodo="clearAllTodo"
        />
      </div>
    </div>
  </div>
</template>

<script>
import myFooter from "./components/myFooter";
import myHeader from "./components/myHeader";
import myList from "./components/myList";
//import myItem from './components.myItem'//这块不用引入item了因为它是包括在list中的

// 交互的样式
export default {
  name: "App",
  components: {
    myFooter,
    myHeader,
    myList,
  },
  //数据在app里，那么对数据的所有增删改查都应该在app里
  data() {
    return {
      todos: [
        { id: "001", title: "吃饭", done: true },
        { id: "002", title: "睡觉", done: true },
        { id: "003", title: "抽烟", done: false },
        { id: "004", title: "喝酒", done: false },
        // 一般id都用字符串，因为数字是有尽头的
      ],
    };
  },
  // mounted() {
  //   this.$bus.$on("checkTodo", this.checkTodo);
  //   this.pubId = pubsub.subscribe("deleteTodo", this.deleteTodo);
  // },
  // beforeDestroy() {
  //   this.$bus.$off("checkTodo");
  //   pubsub.unsubscribe(this.pubID);
  // },
  methods: {
    //添加一个todo
    receive(todoObj) {
      this.todos.unshift(todoObj);
    },
    //勾选/取消勾选
    checkTodo(id) {
      this.todos.forEach((todo) => {
        if (todo.id == id) todo.done = !todo.done;
      });
    },
    deleteTodo(id) {
      this.todos = this.todos.filter((todo) => {
        return todo.id !== id;
      });
    },
    checkAllTodo(done) {
      this.todos.forEach((todo) => {
        todo.done = done;
      });
    },
    clearAllTodo() {
      this.todos = this.todos.filter((todo) => {
        return !todo.done;
      });
    },
  },
};
</script>
<style scoped>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}
.btn-edit {
  color: #fff;
  background-color: skyblue;
  border: 1px solid rgb(135, 158, 235);
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
